Usage:
<br />RFD-D ultrasonic fetal doppler meets the fetus daily check and routine examination at home, 
<br />clinic, community and hospital.
<br />
<br />Features for fetal doppler:
<br />● Easy and convenient operation
<br />● High-fidelity, crystal clear sound
<br />● Earphone and speaker are feasible
<br />● High sensitivity doppler probe
<br />● Low ultrasound dosage
<br />● Display with backlight LCD
<br />● Unique ergonomic design